Research/Sitter/MAGNDATA / 2.51_EuMnBi2.mcif

EuMnBi₂

MAGNDATA entry 2.51 · source

noncollinear ferrimagnet

Opposite moments of different size leave a net magnetisation.

ordered ≤ 19 K (−254 °C)Colour: where that sits relative to 25 °C. Saturation: how much margin it has.

Structure · 9 properties

Magnetic group	P m′ n′ 2₁ BNS 31.127
Parent space group	I 4/m m m No. 139
Spins	coplanar · net moment 4.2 μ_B per cell
Propagation	[0 0 0] · [1 1 1] 2k
Cell	a 4.5342 · b 4.5342 · c 22.427 Å · α 90° · β 90° · γ 90°
Transition	19 K (−254 °C)
Measured at	2 K
Magnetic ions	Eu, Mn
Largest moment component	6.31 μ_B

Symmetry

Stereogram of the magnetic point group: each operation applied to one direction. Filled = upper hemisphere, ring = lower; red operations include time reversal. Lines are mirrors; polygons are 2/3/4/6-fold axes; the centre ring is inversion.

Every structure in P m′ n′ 2₁ →

Atom sites · 8 sites · CSV

site	element	x	y	z	m_a	m_b	m_c	\|m\| (μ_B)
Eu1_1	Eu	0	0	0.1148	6.31	0	1.05	6.3968
Eu1_2	Eu	0	0	0.8852	−6.31	0	1.05	6.3968
Mn1_1	Mn	0	0.5	0.25	0	0	3.4	3.4
Mn1_2	Mn	0.5	0	0.25	0	0	−3.4	3.4
Bi1_1	Bi	0	0.5	0
Bi1_2	Bi	0.5	0	0
Bi2_1	Bi	0	0	0.3287
Bi2_2	Bi	0	0	0.6713

Moment components are along the crystal axes a, b, c (μ_B), as magCIF writes them. Symmetry generates the rest of the cell from these sites.

Source

H. Masuda et al. PHYSICAL REVIEW B (2020) · doi:10.1103/PhysRevB.101.174411

Cite the original paper and MAGNDATA, not this mirror.

Original file

⬇ 2.51_EuMnBi2.mcif from MAGNDATA · entry page

sha256 of this copy: c596fd19a43922fd1e24bdb41407456233810d540356e685a5c4b4c573c87c99
The mirror keeps the bytes Bilbao served, so the original should hash the same unless MAGNDATA has revised the entry since: shasum -a 256 2.51_EuMnBi2.mcif.